BI-1854
Carbon cycle and carbon sinks
Biology · Secondary 4 · Medium · Carbon cycle and carbon sinks
In a lake, algae carry out photosynthesis and respiration. During a sunny day, which net effect do the algae have on the amount of carbon dioxide in the water?
- They increase carbon dioxide because respiration is faster.
- They decrease carbon dioxide because photosynthesis is faster.
- They do not affect carbon dioxide at all.
- They first increase then permanently stop using carbon dioxide.
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